CN105225500B - A kind of traffic control aid decision-making method and device - Google Patents
A kind of traffic control aid decision-making method and device Download PDFInfo
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- CN105225500B CN105225500B CN201510518969.2A CN201510518969A CN105225500B CN 105225500 B CN105225500 B CN 105225500B CN 201510518969 A CN201510518969 A CN 201510518969A CN 105225500 B CN105225500 B CN 105225500B
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Abstract
The present invention provides a kind of traffic control aid decision-making method and device, including：Obtain the road section traffic volume data in section；The congestion information and/or traffic accident information in section are determined according to the road section traffic volume data, the congestion information includes the traffic behavior in section, congestion status distribution pattern, and the traffic accident information, which includes traffic accident, influences grade；Grade is influenceed according to the congestion information in the section and/or the traffic accident and determines traffic control aid decision prediction scheme.
Description
Technical field
The present invention relates to technical field of traffic control, more particularly to a kind of traffic control aid decision-making method and device.
Background technology
With the fast development of national economy and the continuous improvement of living standards of the people, the expansion of city size and motor vehicle
Quantity increases rapidly so that road section traffic volume flow increases sharply, and produces traffic abnormal incident.Traffic abnormal incident type has more
Sample, and have to the description of traffic congestion spatial distribution and accident to features such as traffic circulation state influence degrees fuzzy
Property.
In the prior art, typically judge whether traffic abnormal incident occurs by video mode identification technology, traffic abnormity
Event expert database is according to traffic abnormal incident related data, by level fuzzy decision model, generation traffic abnormal incident etc.
The indexes such as level, the event extent of injury, traffic handle demand, event rescue demand, the grade evaluation of event, event are endangered into journey
The index informations such as degree, traffic handle demand, event rescue demand and event detection signal are transferred to traffic integration information platform and entered
Row processing.However, in actual applications, answered when being judged using video mode identification anomalous event in the presence of certain technology
Miscellaneous degree, and the degree of accuracy is not high.
At present, for how to realize the effective traffic abnormal incident progress for judging traffic abnormal incident, and being directed to appearance
Corresponding traffic control, does not solve method clearly also.
The content of the invention
The embodiment of the present invention provides a kind of traffic control aid decision-making method and device, effective to solve how to realize
Judge traffic abnormal incident, and the problem of the progress corresponding traffic control of the traffic abnormal incident for occurring.
The embodiment of the present invention provides a kind of traffic control aid decision-making method, including：
Obtain road section traffic volume data；
The congestion information and/or traffic accident information in section, the congestion information are determined according to the road section traffic volume data
Traffic behavior including section, congestion status distribution pattern, the traffic accident information, which includes traffic accident, influences grade；
Grade is influenceed according to the congestion information in the section and/or the traffic accident and determines that traffic control aid decision is pre-
Case.
Preferably, the road section traffic volume data include following parameter：
Section traffic occupation rate and/or section vehicle average speed.
Preferably, the congestion information that section is determined according to the road section traffic volume data, including：
If it is determined that the section traffic occupation rate in the section is more than first threshold and is less than the second threshold in preset time period
Value, it is determined that the traffic behavior in the section is jogging state, however, it is determined that the section in the section in the preset time period
Traffic occupation rate is more than or equal to Second Threshold, it is determined that and the traffic behavior in the section is congestion status, wherein, described second
Threshold value is more than the first threshold；
When the traffic behavior in the section is congestion status, the section network topology structure according to residing for the section determines
Congestion status distribution pattern residing for section.
Preferably, the section network topology structure according to residing for the section determine section residing for congestion status point
Cloth type, including：
Judge whether there is the section in congestion status in the section adjacent with the section, if it is not, then confirming the road
Congestion status distribution pattern residing for section is point congestion；
If there is the section in congestion status in the section adjacent with the section, will be adjacent with the section and it be in
The section of congestion status performs following steps as section congestion set：
Step 1, travel through all sections in the section network topology structure residing for the section, will be in congestion status,
And the subsections mergence adjacent with any section in the section congestion set enters the section congestion set；
Step 2, whether increase, if so, then return to step one, no if judging the quantity in section in the section congestion set
Then go to step 3；
Step 3, judges whether the section in the section congestion set is in same path, if so, then confirming institute
It is line congestion to state the congestion status distribution pattern residing for section, otherwise, confirms the congestion status distribution pattern residing for the section
For face congestion.
Preferably, the traffic accident information that section is determined according to the road section traffic volume data, including：
Closed according to the section vehicle average speed in the section in section vehicle average speed and the mapping of traffic accident grade
The traffic accident grade of the section vehicle average speed mapping in the section is determined in system, the traffic accident grade includes slight
Level traffic accident, middle grade traffic accident, serious level traffic accident.
Preferably, the congestion information and/or the traffic accident information according to the section determines that traffic control is auxiliary
Decision-making prediction scheme is helped, including：
Pass through congestion information and/or the institute entering road junction induced screen and show the section of the upstream nearest apart from the section
State traffic accident information；
Congestion status distribution pattern adjustment traffic signals according to residing for the traffic behavior in the section and the section
The long green light time of lamp；
According to the long green light time of the traffic accident level adjustment traffic lights in the section.
Preferably, the congestion status distribution pattern according to residing for the traffic behavior in the section and the section is adjusted
The long green light time of whole traffic lights, including：
The traffic behavior in the section is congestion status, and the section is in when putting congestion, reduces the upper of the section
The section is rolled away from the long green light time for the traffic lights that the track in the section is driven towards in trip, the downstream in the increase section
Track traffic lights long green light time；
The traffic behavior in the section is congestion status, and when the section is in line congestion, is determined residing for the section
Line congestion upstream boundary section and downstream boundary section, and reduce driven towards in the upstream in the upstream boundary section it is described
Rolled away from the long green light time of the traffic lights in the track in upstream boundary section, the downstream in the increase downstream boundary section described
The long green light time of the traffic lights in the track in downstream boundary section；
The traffic behavior in the section is congestion status, and when the section is in face congestion, is determined residing for the section
Face congestion in all boundary road segments, for either boundary section, reduce and the border road driven towards in the upstream of the boundary road segments
The long green light time of the traffic lights in the track of section, the friendship for increasing the track for rolling the boundary road segments in the downstreams of the boundary road segments away from
The long green light time of ventilating signal lamp.
Preferably, the long green light time of the traffic accident level adjustment traffic lights according to the section, including：
When the traffic accident grade in the section is middle grade traffic accident, the road will be driven towards in the upstream in the section
The long green light time of the traffic lights in the track of section is reduced into the first duration, will roll the section in the downstream in the section away from
The long green light time increase of the traffic lights in track is the second duration；
When the traffic accident grade in the section is serious level traffic accident, the road will be driven towards in the upstream in the section
The long green light time of the traffic lights in the track of section is reduced into the 3rd duration, will roll the section in the downstream in the section away from
The long green light time increase of the traffic lights in track is the 4th duration, wherein, first duration is more than the 3rd duration, institute
State the second duration and be less than the 4th duration.
The embodiment of the present invention provides a kind of traffic control aid decision device, including：
Acquiring unit, for obtaining road section traffic volume data；
Determining unit, for determining the congestion information and/or traffic accident information in section according to the road section traffic volume data,
The congestion information includes the traffic behavior in section, congestion status distribution pattern, and the traffic accident information includes traffic accident
Influence grade；
Scheduling unit, influence grade for the congestion information according to the section and/or the traffic accident and determine traffic
Control aid decision prediction scheme.
Preferably, the road section traffic volume data include following parameter：
Section traffic occupation rate and/or section vehicle average speed.
Preferably, the determining unit is specifically used for：
If it is determined that the section traffic occupation rate in the section is more than first threshold and is less than the second threshold in preset time period
Value, it is determined that the traffic behavior in the section is jogging state, however, it is determined that the section in the section in the preset time period
Traffic occupation rate is more than or equal to Second Threshold, it is determined that and the traffic behavior in the section is congestion status, wherein, described second
Threshold value is more than the first threshold；
When the traffic behavior in the section is congestion status, the section network topology structure according to residing for the section determines
Congestion status distribution pattern residing for section.
Preferably, the determining unit is specifically used for：
Judge whether there is the section in congestion status in the section adjacent with the section, if it is not, then confirming the road
Congestion status distribution pattern residing for section is point congestion；
If there is the section in congestion status in the section adjacent with the section, will be adjacent with the section and it be in
The section of congestion status performs following steps as section congestion set：
Step 1, travel through all sections in the section network topology structure residing for the section, will be in congestion status,
And the subsections mergence adjacent with any section in the section congestion set enters the section congestion set；
Step 2, whether increase, if so, then return to step one, no if judging the quantity in section in the section congestion set
Then go to step 3；
Step 3, judges whether the section in the section congestion set is in same path, if so, then confirming institute
It is line congestion to state the congestion status distribution pattern residing for section, otherwise, confirms the congestion status distribution pattern residing for the section
For face congestion.
Preferably, the determining unit is specifically used for：
Closed according to the section vehicle average speed in the section in section vehicle average speed and the mapping of traffic accident grade
The traffic accident grade of the section vehicle average speed mapping in the section is determined in system, the traffic accident grade includes slight
Level traffic accident, middle grade traffic accident, serious level traffic accident.
Preferably, the scheduling unit is specifically used for：
Pass through congestion information and/or the institute entering road junction induced screen and show the section of the upstream nearest apart from the section
State traffic accident information；
Congestion status distribution pattern adjustment traffic signals according to residing for the traffic behavior in the section and the section
The long green light time of lamp；
According to the long green light time of the traffic accident level adjustment traffic lights in the section.
Preferably, the scheduling unit is specifically used for：
The traffic behavior in the section is congestion status, and the section is in when putting congestion, reduces the upper of the section
The section is rolled away from the long green light time for the traffic lights that the track in the section is driven towards in trip, the downstream in the increase section
Track traffic lights long green light time；
The traffic behavior in the section is congestion status, and when the section is in line congestion, is determined residing for the section
Line congestion upstream boundary section and downstream boundary section, and reduce driven towards in the upstream in the upstream boundary section it is described
Rolled away from the long green light time of the traffic lights in the track in upstream boundary section, the downstream in the increase downstream boundary section described
The long green light time of the traffic lights in the track in downstream boundary section；
The traffic behavior in the section is congestion status, and when the section is in face congestion, is determined residing for the section
Face congestion in all boundary road segments, for either boundary section, reduce and the border road driven towards in the upstream of the boundary road segments
The long green light time of the traffic lights in the track of section, the friendship for increasing the track for rolling the boundary road segments in the downstreams of the boundary road segments away from
The long green light time of ventilating signal lamp.
Preferably, the scheduling unit is specifically used for：
When the traffic accident grade in the section is middle grade traffic accident, the road will be driven towards in the upstream in the section
The long green light time of the traffic lights in the track of section is reduced into the first duration, will roll the section in the downstream in the section away from
The long green light time increase of the traffic lights in track is the second duration；
When the traffic accident grade in the section is serious level traffic accident, the road will be driven towards in the upstream in the section
The long green light time of the traffic lights in the track of section is reduced into the 3rd duration, will roll the section in the downstream in the section away from
The long green light time increase of the traffic lights in track is the 4th duration, wherein, first duration is more than the 3rd duration, institute
State the second duration and be less than the 4th duration.
The method and device provided according to embodiments of the present invention, gathering around for section is determined by the road section traffic volume data got
After stifled information and/or traffic accident information, traffic control is determined according to the congestion information in section and/or the traffic accident information
Aid decision prediction scheme processed.Because the embodiment of the present invention is by analyzing the road section traffic volume data got, determining outlet
The congestion information and/or traffic accident information of section, so that it is determined that going out related to the congestion information in section and/or traffic accident information
Traffic control aid decision prediction scheme, realize according to the real-time traffic condition in section carry out traffic control.Improve processing road
The respond of congestion and/or the traffic accident of section, section is reduced due to loss caused by congestion and/or traffic accident.
Brief description of the drawings
Fig. 1 is a kind of roadway segment schematic diagram provided in an embodiment of the present invention；
Fig. 2 is a kind of traffic control aid decision-making method schematic flow sheet provided in an embodiment of the present invention；
Fig. 3 differentiates schematic flow sheet for a kind of congestion status distribution pattern provided in an embodiment of the present invention；
Fig. 4 is a kind of traffic accident schematic diagram provided in an embodiment of the present invention；
Fig. 5 is a kind of traffic accident schematic diagram provided in an embodiment of the present invention；
Fig. 6 is a kind of line congestion schematic diagram provided in an embodiment of the present invention；
Fig. 7 is a kind of traffic control aid decision apparatus structure schematic diagram provided in an embodiment of the present invention.
Embodiment
The embodiment of the present invention is described in detail with reference to Figure of description.
A road can be divided into multiple sections in the embodiment of the present invention, specifically, as shown in figure 1, being the embodiment of the present invention
A kind of roadway segment schematic diagram provided.Road in Fig. 1 is divided into M sections.Every section of section can be 250 meters or 300 meters etc.,
It can also go to set according to actual conditions, the length in every section of section can also be unequal.
The topological structure that can be formed in the embodiment of the present invention according to a plurality of road, and combine the road of every road k-path partition
Section, form section network topology structure.The adjacent segments in each section can be indicated in the section network topology structure, and often
The information such as the annexation between road residing for individual section.Simultaneously in the network topology structure of section, traffic letter can be also identified
Signal lamp and enter road junction induced screen and the relative position relation in section etc..
The road section traffic volume data in every section of section are detected in the embodiment of the present invention by the traffic data detector of setting.Traffic
Data detector can be ring coil detector, geomagnetism detecting device, video detector, supersonic detector etc., and the present invention is real
Example is applied not limit this.
By setting, the traffic detector in section can obtain the speed of vehicle, section traffic accounts in the embodiment of the present invention
There are the information such as rate.
With reference to above description, as shown in Fig. 2 a kind of traffic control aid decision-making method stream provided in an embodiment of the present invention
Journey schematic diagram.Referring to Fig. 2, this method includes：
Step 201：Obtain road section traffic volume data
Step 202：The congestion information and/or traffic accident information in section are determined according to the road section traffic volume data, it is described
Congestion information includes the traffic behavior in section, congestion status distribution pattern, and the traffic accident information influences including traffic accident
Grade；
Step 203：Grade is influenceed according to the congestion information in the section and/or the traffic accident and determines that traffic control is auxiliary
Help decision-making prediction scheme.
In step 201, the position of section in the road does not limit, and can be the section of intersection, or
Section among road, no matter section be in road where, to the processing mode of the road section traffic volume data got
All it is identical.
Preferably, the road section traffic volume data got include following parameter：
Section traffic occupation rate and/or section vehicle average speed.
Section traffic occupation rate calculation can be shown in equation below：
Wherein, O is section traffic occupation rate, nlTo be equipped with the number of track-lines of section detector, n in sectionv(i) it is i-th
The vehicle fleet that track is passed through, ti,jThe time span spent by i-th of track jth car by section detector, C are letter
Number cycle duration.
The one or more in following parameter can also be included in the road section traffic volume data got：
The time of traffic accident occurs in section；
The direction in track shared by the traffic accident occurred in section；
The quantity in track shared by the traffic accident occurred in section；
The casualties situation of the traffic accident occurred in section.
When traffic accident only occurring it should be noted that in the embodiment of the present invention, in section, the road section traffic volume that gets
Data just have the information relevant with traffic accident.
In step 202, after road section traffic volume data are got, it may be determined that the congestion information in section and/or traffic
Accident information, describe separately below.
Section traffic occupation rate in road section traffic volume data determine section traffic behavior and section residing for gather around
Stifled state distribution pattern：
If it is determined that the section traffic occupation rate in the section is less than or equal to first threshold in preset time period, it is determined that
The traffic behavior in the section is unimpeded state；If it is determined that the section traffic occupation rate in the section is more than in preset time period
First threshold and it is less than Second Threshold, it is determined that the traffic behavior in the section is jogging state, however, it is determined that when described default
Between in section the section traffic occupation rate in the section be more than or equal to Second Threshold, it is determined that the traffic behavior in the section is gathers around
Stifled state, wherein, the Second Threshold is more than the first threshold；
When the traffic behavior in the section is congestion status, the section network topology structure according to residing for the section determines
Congestion status distribution pattern residing for section.
For example, according to the historical traffic data in section, determine the section traffic occupation rate in section less than or equal to
During O1, the vehicle in section will not produce delay and travel speed is normal, be able to can now recognize using O1 as first threshold
Traffic behavior for section is unimpeded state；According to the historical traffic data in section, determine that the section traffic occupation rate in section exists
When more than O1 and being less than O2, the Vehicle Speed in section is more than the 80% of normal speed, or the vehicle energy in section
Enough slowly travelings but not generation delay, now can be using O2 as Second Threshold, it is believed that the traffic behavior in section is slow
Row state；According to the historical traffic data in section, the section traffic occupation rate in section is determined when more than or equal to O2, in section
Vehicle Speed within the 20% of normal speed, or vehicle in section produces delay, now it is considered that section
Traffic behavior be congestion status.
In the case of having, the congestion status in section can voluntarily dissipate in 1~2 cycle duration, the congestion of this situation
State can not process.In order to eliminate quickly generate with influence of the congestion status of rapid dispersion to monitoring result, in section
Every kind of traffic behavior duration when being preset time period, just confirm the type of the traffic behavior, preset time period in general
Value can be 3 times of the cycle duration of signal lamp corresponding to section.
In some cases, possible more than one section is in congestion status, and multiple sections may be in congestion status simultaneously,
It is corresponding to generate now it needs to be determined that going out while being in the congestion status distribution pattern that multiple sections of congestion status are formed
Traffic control aid decision prediction scheme.
Preferably, residing for section network topology structure that can be in the following manner according to residing for the section determines section
Congestion status distribution pattern：
Judge whether there is the section in congestion status in the section adjacent with the section, if it is not, then confirming the road
Congestion status distribution pattern residing for section is point congestion；
If there is the section in congestion status in the section adjacent with the section, will be adjacent with the section and it be in
The section of congestion status performs following steps as section congestion set：
Step 1, travel through all sections in the section network topology structure residing for the section, will be in congestion status,
And the subsections mergence adjacent with any section in the section congestion set enters the section congestion set；
Step 2, whether increase, if so, then return to step one, no if judging the quantity in section in the section congestion set
Then go to step 3；
If the quantity in section does not increase in the congestion set of section, illustrate that the quantity in section in the congestion set of section has arrived
Up to the limit, the traversal to section in the network topology structure of section can be terminated.
Step 3, judges whether the section in the section congestion set is in same path, if so, then confirming institute
It is line congestion to state the congestion status distribution pattern residing for section, otherwise, confirms the congestion status distribution pattern residing for the section
For face congestion.
Preferably, after it is determined that the traffic behavior in section is congestion status, then the congestion of the congestion status in the section is confirmed
Type is the often congestion of hair property or sporadic congestion.Often the hair property congestion origin cause of formation is mainly that traffic flow supply and demand skewness weighing apparatus property triggers
Congestion, for example, the congestion of morning peak and evening peak period, the regular congestion of special road section.Sporadic traffic congestion is main
The congestion triggered by accidents such as lager-scale social event, exception parking, traffic accidents.
Specifically, the congestion type of the congestion status in section can be judged for the often congestion of hair property or idol in the following manner
The congestion of hair property：
Judge whether the section traffic occupation rate in the section in congestion status is more than the 3rd threshold value and is less than the 4th threshold value,
If, it is determined that the attribute of the congestion status in the section is often hair property congestion；
Judge whether the section traffic occupation rate in the section in congestion status is more than or equal to the 4th threshold value, if so, then
The attribute for determining the congestion status in the section is sporadic congestion, wherein, the 4th threshold value is more than the 3rd threshold value.
For any one section, can be determined by the Historic Section traffic occupation rate in the section corresponding to the section
Three threshold values.For example, N number of period can be divided into by 24 hours one day, N is positive integer.It is then determined that in each time
Mean change scope of the section traffic occupation rate in the section in D days in section, by mean change scope corresponding to each section
Threeth threshold value of the minimum value as the section within the period, by the maximum of mean change scope corresponding to each section
As fourth threshold value of the section within the period.
For example, 24 periods, traffic of the section within the 12nd period were divided into by 24 hours one day
State is congestion status, and the excursion of the section traffic occupation rate in the period is When it is determined that the time
The section traffic occupation rate o in the section in section12MeetWhen, it may be determined that the category of the congestion status in the section
Property for often hair property congestion, when it is determined that in the period section section traffic occupation rate o12MeetWhen, can be true
The attribute of the congestion status in the fixed section is sporadic congestion.
Specifically, as shown in figure 3, differentiate flow signal for a kind of congestion status distribution pattern provided in an embodiment of the present invention
Figure.
Referring to Fig. 3, the flow comprises the following steps：
Step 301：Whether the traffic behavior for judging section is congestion status, if so, then going to step 302, is otherwise gone to
Step 301；
If it is determined that the section traffic occupation rate in the section is more than or equal to Second Threshold in preset time period, it is determined that
The traffic behavior in the section is congestion status.
Step 302：Judge whether there is the section in congestion status in the section adjacent with the section, if it is not, then turning
To step 303, step 304 is otherwise gone to.
Step 303：Confirm that the congestion status distribution pattern residing for the section is a congestion, go to step 310.
Step 304：Using and section in congestion status adjacent with the section as section congestion set, and step is gone to
Rapid 305.
Step 305：All sections in the section network topology structure residing for the section are traveled through, congestion shape will be in
The state and subsections mergence adjacent with any section in the section congestion set enters the section congestion set, goes to step
306。
Step 306：Whether judge the quantity in section in the section congestion set increases, if so, step 305 is then gone to,
Otherwise step 307 is gone to.
Step 307：Judge whether the section in the section congestion set is in same path, if so, then going to
Step 308, otherwise, step 309 is gone to.
Step 308：Confirm that the congestion status distribution pattern residing for the section is line congestion, go to step 310.
Step 309：Confirm that the congestion status distribution pattern residing for the section is face congestion, go to step 310.
Step 310：Terminate.
If traffic accident occurs in section, also need to determine traffic accident information.Partly believe in traffic accident information
Breath can directly determine that some information need to further determine that by road section traffic volume data.Traffic thing in traffic accident information
Therefore grade needs to be determined according to road section traffic volume data.
It should be noted that no matter traffic accident occurs between the section of intersection, or generation in the road
Section, the mode to traffic accident treatment are all same or similar.
Specifically, mapped according to the section vehicle average speed in section in section vehicle average speed and traffic accident grade
The traffic accident grade of the section vehicle average speed mapping in the section is determined in relation, the traffic accident grade includes light
Microstage traffic accident, middle grade traffic accident, serious level traffic accident.
For example, vehicle average speed in section is with traffic accident grade mapping relations：Section vehicle average speed is big
When First Speed, the traffic accident grade of the section vehicle average speed mapping is slight level traffic accident, this
When traffic of the traffic accident to the section have no significant effect, the vehicle in the section can also travel, and speed is normal condition.
Section vehicle average speed is with traffic accident grade mapping relations：Section vehicle average speed is more than or equal to
Second speed and when being less than First Speed, the traffic accident grade of section vehicle average speed mapping is middle grade traffic thing
Therefore traffic of the now traffic accident to the section has an impact, but influence is smaller, and the vehicle in the section can also travel, but speed
It is slower.
Section vehicle average speed is with traffic accident grade mapping relations：Section vehicle average speed is less than second speed
When, the traffic accident grade of the section vehicle average speed mapping is serious level traffic accident, and now traffic accident is to the section
Traffic have a strong impact on, hindered the vehicular traffic in the section, the vehicle in the section can not normally travel.
For example, the section can be recorded in advance, and Vehicle Speed before traffic accident in A cycle duration occurs
Excursion, wherein A is positive integer, using the minimum Vehicle Speed in excursion as First Speed, by the first speed
For the speed spent after being multiplied with weighted value B as second speed, wherein B is the Arbitrary Digit more than 0 and being less than between 1.
Traffic control aid decision prediction scheme is finally determined in step 203.Traffic control aid decision prediction scheme is used for friendship
The policymaker of logical control is referred to.When carrying out traffic control, the policymaker of traffic control directly can be used according to this hair
The traffic control aid decision prediction scheme that the method for bright embodiment is determined, can also be according to traffic control of the actual conditions to determining
Aid decision prediction scheme processed is modified and supplemented.
Traffic control aid decision prediction scheme is generally divided into three sub- prediction schemes, specifically：
First sub- prediction scheme：Pass through the congestion entered road junction induced screen and show the section of the upstream nearest apart from the section
Information and/or the traffic accident information.
Optionally, enter in the induced screen of road junction to show safety traffic prompt message, around information such as row informations.
Optionally, gathering around for the section can also be shown by the road junction induced screen that enters in the downstream nearest apart from the section
Stifled information and/or the traffic accident information.
Second sub- prediction scheme：Congestion status distribution pattern according to residing for the traffic behavior in the section and the section is adjusted
The long green light time of whole traffic lights.
Specifically, the traffic behavior in the section is congestion status, and the section is in when putting congestion, reduces the road
Institute is rolled away from the long green light time for the traffic lights that the track in the section is driven towards in the upstream of section, the downstream in the increase section
State the long green light time of the traffic lights in the track in section.
For example, when the green light of the traffic lights in the track in the section can will be driven towards in the upstream in the section
It is long to reduce 20%, the long green light time increase of the traffic lights in the track in the section will be rolled in the downstream in the section away from
30%.
The traffic behavior in the section is congestion status, and when the section is in line congestion, is determined residing for the section
Line congestion upstream boundary section and downstream boundary section, and reduce driven towards in the upstream in the upstream boundary section it is described
Rolled away from the long green light time of the traffic lights in the track in upstream boundary section, the downstream in the increase downstream boundary section described
The long green light time of the traffic lights in the track in downstream boundary section.
It should be noted that section of the upstream boundary section for the border of congestion regions in the upstream of line congestion, under
It is the section for the border of congestion regions in the downstream of line congestion to swim boundary road segments.
The traffic behavior in the section is congestion status, and when the section is in face congestion, is determined residing for the section
Face congestion in all boundary road segments, for either boundary section, reduce and the border road driven towards in the upstream of the boundary road segments
The long green light time of the traffic lights in the track of section, the friendship for increasing the track for rolling the boundary road segments in the downstreams of the boundary road segments away from
The long green light time of ventilating signal lamp.
When multiple sections, the adjustment to the long green light time in same track clashes, road according to residing for section
Priority is adjusted, and is defined by the long green light time of the Road adjustment of highest priority.The priority of road from high in the end can be with
It is divided into four ranks, is respectively：First level, second level, third level, fourth level, highest priority are first level,
Minimum priority is fourth level.Road type corresponding to each rank can be as shown in table 1：
Table 1
| Priority | First level | Second level | Third level | Fourth level |
| Road type | Special duty's circuit | Trunk roads | Secondary distributor road | Branch road |
3rd sub- prediction scheme：According to the long green light time of the traffic accident level adjustment traffic lights in the section.
Specifically, when the traffic accident grade in the section is middle grade traffic accident, will be sailed in the upstream in the section
The first duration is reduced into the long green light time of the traffic lights in the track in the section, will roll institute in the downstream in the section away from
The long green light time increase for stating the traffic lights in the track in section is the second duration；
When the traffic accident grade in the section is serious level traffic accident, the road will be driven towards in the upstream in the section
The long green light time of the traffic lights in the track of section is reduced into the 3rd duration, will roll the section in the downstream in the section away from
The long green light time increase of the traffic lights in track is the 4th duration, wherein, first duration is more than the 3rd duration, institute
State the second duration and be less than the 4th duration.
Meanwhile traffic accident is sent in section, and when traffic behavior is congestion, can also notify apart from the section most
Near traffic police carries out traffic dispersion.
It should be noted that every sub- prediction scheme in above-mentioned traffic control aid decision prediction scheme can be entered according to actual conditions
Row adjustment.
For example, as shown in figure 4, being a kind of traffic accident schematic diagram provided in an embodiment of the present invention.It is located at road in Fig. 4
Traffic accident occurs for the section in road centre position, and traffic accident grade is serious level traffic accident.Track shared by traffic accident
Travel direction as shown by arrows in FIG..Now, traffic control aid decision prediction scheme is：1. notify the friendship nearest apart from the section
It is alert to carry out traffic dispersion；2. by the upstream nearest apart from the section enter road junction induced screen K1 and apart from the section most
The traffic accident information for entering road junction induced screen K2 and showing the section near downstream, while issue is also needed around row information；3. will
The long green light time that the traffic lights L1 in the track in the section is driven towards in the upstream in the section reduces 40%, by the section
Downstream in roll away from the section track traffic lights L2 long green light time increase by 50%.
As shown in figure 5, it is a kind of traffic accident schematic diagram provided in an embodiment of the present invention.It is located at intersection in Fig. 5
Traffic accident occurs for the section of position, and traffic accident grade is middle grade traffic accident.The traveling in the track shared by traffic accident
Direction is as shown by arrows in FIG..Now, traffic control aid decision prediction scheme is：1. the traffic police nearest apart from the section is notified to carry out
Traffic dispersion；2. by the upstream nearest apart from the section enter road junction induced screen K1 and apart from the section recently under
The traffic accident information for entering road junction induced screen K2 and showing the section of trip, while issue is also needed around row information；3. by the road
The long green light time that the traffic lights L1 in the track in the section is driven towards in the upstream of section reduces 20%, by the downstream in the section
In roll away from the section track traffic lights L2 long green light time increase by 25%.
As shown in fig. 6, it is a kind of line congestion schematic diagram provided in an embodiment of the present invention.The sa sections of one article of road in Fig. 6
The traffic behavior in section to sb sections section is congestion status, and is in line congestion status.The row in the track shared by congestion status
Sail direction as shown by arrows in FIG..Sa sections section is upstream boundary section, and sb sections section is downstream boundary section.Now,
Traffic control aid decision prediction scheme is：1. the traffic police nearest apart from the section is notified to carry out traffic dispersion；2. by described in distance
The nearest upstream in section enter road junction induced screen K1 and the road junction induced screen K2 that enters in the downstream nearest apart from the section is shown
The congestion information in the section, while issue is also needed around row information；Sa sections road is driven towards in the upstream in sa sections section 3. reducing
The traffic lights L1 in the track of section long green light time, it is possible to reduce 10%, increase in the downstream in sb sections section and roll sb away from
The traffic lights L2 in the track in section section long green light time, can increase by 15%.
For above method flow, the embodiment of the present invention also provides a kind of traffic control aid decision device, the device
Particular content is referred to above method implementation, will not be repeated here.
As shown in fig. 7, the embodiment of the present invention provides a kind of traffic control aid decision apparatus structure schematic diagram, the device bag
Include：
Acquiring unit 701, for obtaining road section traffic volume data；
Determining unit 702, for determining the congestion information and/or traffic accident letter in section according to the road section traffic volume data
Breath, the congestion information include the traffic behavior in section, congestion status distribution pattern, and the traffic accident information includes traffic thing
Therefore influence grade；
Scheduling unit 703, influence grade for the congestion information according to the section and/or the traffic accident and determine to hand over
Logical control aid decision prediction scheme.
Preferably, the road section traffic volume data include following parameter：
Section traffic occupation rate and/or section vehicle average speed.
Preferably, the determining unit 702 is specifically used for：
If it is determined that the section traffic occupation rate in the section is more than first threshold and is less than the second threshold in preset time period
Value, it is determined that the traffic behavior in the section is jogging state, however, it is determined that the section in the section in the preset time period
Traffic occupation rate is more than or equal to Second Threshold, it is determined that and the traffic behavior in the section is congestion status, wherein, described second
Threshold value is more than the first threshold；
When the traffic behavior in the section is congestion status, the section network topology structure according to residing for the section determines
Congestion status distribution pattern residing for section.
Preferably, the determining unit 702 is specifically used for：
Judge whether there is the section in congestion status in the section adjacent with the section, if it is not, then confirming the road
Congestion status distribution pattern residing for section is point congestion；
If there is the section in congestion status in the section adjacent with the section, will be adjacent with the section and it be in
The section of congestion status performs following steps as section congestion set：
Step 1, travel through all sections in the section network topology structure residing for the section, will be in congestion status,
And the subsections mergence adjacent with any section in the section congestion set enters the section congestion set；
Step 2, whether increase, if so, then return to step one, no if judging the quantity in section in the section congestion set
Then go to step 3；
Step 3, judges whether the section in the section congestion set is in same path, if so, then confirming institute
It is line congestion to state the congestion status distribution pattern residing for section, otherwise, confirms the congestion status distribution pattern residing for the section
For face congestion.
Preferably, the determining unit 702 is specifically used for：
Closed according to the section vehicle average speed in the section in section vehicle average speed and the mapping of traffic accident grade
The traffic accident grade of the section vehicle average speed mapping in the section is determined in system, the traffic accident grade includes slight
Level traffic accident, middle grade traffic accident, serious level traffic accident.
Preferably, the scheduling unit 703 is specifically used for：
Pass through congestion information and/or the institute entering road junction induced screen and show the section of the upstream nearest apart from the section
State traffic accident information；
Congestion status distribution pattern adjustment traffic signals according to residing for the traffic behavior in the section and the section
The long green light time of lamp；
According to the long green light time of the traffic accident level adjustment traffic lights in the section.
Preferably, the scheduling unit 703 is specifically used for：
The traffic behavior in the section is congestion status, and the section is in when putting congestion, reduces the upper of the section
The section is rolled away from the long green light time for the traffic lights that the track in the section is driven towards in trip, the downstream in the increase section
Track traffic lights long green light time；
The traffic behavior in the section is congestion status, and when the section is in line congestion, is determined residing for the section
Line congestion upstream boundary section and downstream boundary section, and reduce driven towards in the upstream in the upstream boundary section it is described
Rolled away from the long green light time of the traffic lights in the track in upstream boundary section, the downstream in the increase downstream boundary section described
The long green light time of the traffic lights in the track in downstream boundary section；
The traffic behavior in the section is congestion status, and when the section is in face congestion, is determined residing for the section
Face congestion in all boundary road segments, for either boundary section, reduce and the border road driven towards in the upstream of the boundary road segments
The long green light time of the traffic lights in the track of section, the friendship for increasing the track for rolling the boundary road segments in the downstreams of the boundary road segments away from
The long green light time of ventilating signal lamp.
Preferably, the scheduling unit 703 is specifically used for：
When the traffic accident grade in the section is middle grade traffic accident, the road will be driven towards in the upstream in the section
The long green light time of the traffic lights in the track of section is reduced into the first duration, will roll the section in the downstream in the section away from
The long green light time increase of the traffic lights in track is the second duration；
When the traffic accident grade in the section is serious level traffic accident, the road will be driven towards in the upstream in the section
The long green light time of the traffic lights in the track of section is reduced into the 3rd duration, will roll the section in the downstream in the section away from
The long green light time increase of the traffic lights in track is the 4th duration, wherein, first duration is more than the 3rd duration, institute
State the second duration and be less than the 4th duration.
In summary, the method and device provided according to embodiments of the present invention, it is true by the road section traffic volume data got
After the congestion information and/or traffic accident information of determining section, according to the congestion information in section and/or the traffic accident information
Determine traffic control aid decision prediction scheme.Because the embodiment of the present invention is by dividing the road section traffic volume data got
Analysis, determines the congestion information and/or traffic accident information in section, so that it is determined that going out and the congestion information in section and/or traffic
The related traffic control aid decision prediction scheme of accident information, realizes and carries out traffic control according to the real-time traffic condition in section.
The congestion in processing section and/or the respond of traffic accident are improved, reduces section because congestion and/or traffic accident cause
Loss.
Meanwhile the method provided according to embodiments of the present invention, the traffic control towards events such as traffic accident, congestions aid in
Decision-making prediction scheme effectively can carry out high-speed decision with reference to artificial report with modes such as real time traffic data analyses.Overcome and artificially sentence
The defects of workload is big, subjectivity is strong existing for disconnected method, it ensure that traffic abnormal incident differentiates the reliability of result.
It should be understood by those skilled in the art that, embodiments of the invention can be provided as method, system or computer program
Product.Therefore, the present invention can use the reality in terms of complete hardware embodiment, complete software embodiment or combination software and hardware
Apply the form of example.Moreover, the present invention can use the computer for wherein including computer usable program code in one or more
The shape for the computer program product that usable storage medium is implemented on (including but is not limited to magnetic disk storage and optical memory etc.)
Formula.
The present invention is the flow with reference to method according to embodiments of the present invention, equipment (system) and computer program product
Figure and/or block diagram describe.It should be understood that can be by every first-class in computer program instructions implementation process figure and/or block diagram
Journey and/or the flow in square frame and flow chart and/or block diagram and/or the combination of square frame.These computer programs can be provided
The processors of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing devices is instructed to produce
A raw machine instruction so that use is produced by the instruction of computer or the computing device of other programmable data processing devices
In the dress for realizing the function of being specified in one flow of flow chart or multiple flows and/or one square frame of block diagram or multiple square frames
Put.
These computer program instructions, which may be alternatively stored in, can guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works so that the instruction being stored in the computer-readable memory, which produces, to be included referring to
Make the manufacture of device, the command device realize in one flow of flow chart or multiple flows and/or one square frame of block diagram or
The function of being specified in multiple square frames.
These computer program instructions can be also loaded into computer or other programmable data processing devices so that counted
Series of operation steps is performed on calculation machine or other programmable devices to produce computer implemented processing, so as in computer or
The instruction performed on other programmable devices is provided for realizing in one flow of flow chart or multiple flows and/or block diagram one
The step of function of being specified in individual square frame or multiple square frames.
Obviously, those skilled in the art can carry out the essence of various changes and modification without departing from the present invention to the present invention
God and scope.So, if these modifications and variations of the present invention belong to the scope of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to comprising including these changes and modification.
Claims (14)
- A kind of 1. traffic control aid decision-making method, it is characterised in that including：Obtain road section traffic volume data；The congestion information and/or traffic accident information in section are determined according to the road section traffic volume data, the congestion information includes The traffic behavior in section, congestion status distribution pattern, the traffic accident information, which includes traffic accident, influences grade；Grade is influenceed according to the congestion information in the section and the traffic accident and determines traffic control aid decision prediction scheme, or Person, grade is influenceed according to the traffic accident and determines traffic control aid decision prediction scheme,The wherein described traffic accident information that section is determined according to the road section traffic volume data, including：The road section traffic volume data include section vehicle average speed, according to the section vehicle average speed in the section in section Vehicle average speed influences to determine the section vehicle average speed mapping in the section in grade mapping relations with traffic accident Traffic accident influences grade, and the traffic accident, which influences grade, includes slight level traffic accident, middle grade traffic accident, serious level Traffic accident.
- 2. the method as described in claim 1, it is characterised in that the road section traffic volume data include following parameter：Section traffic occupation rate.
- 3. method as claimed in claim 2, it is characterised in that the congestion that section is determined according to the road section traffic volume data Information, including：If it is determined that the section traffic occupation rate in the section is more than first threshold and is less than Second Threshold in preset time period, then The traffic behavior for determining the section is jogging state, however, it is determined that the section traffic in the section accounts in the preset time period There is rate to be more than or equal to Second Threshold, it is determined that the traffic behavior in the section is congestion status, wherein, the Second Threshold is big In the first threshold；When the traffic behavior in the section is congestion status, the section network topology structure according to residing for the section determines section Residing congestion status distribution pattern.
- 4. method as claimed in claim 3, it is characterised in that the section network topology structure according to residing for the section The congestion status distribution pattern residing for section is determined, including：Judge whether there is the section in congestion status in the section adjacent with the section, if it is not, then confirming the section institute The congestion status distribution pattern at place is a congestion；If there is the section in congestion status in the section adjacent with the section, will be adjacent with the section and congestion be in The section of state performs following steps as section congestion set：Step 1, travel through all sections in the section network topology structure residing for the section, will be in congestion status and with The adjacent subsections mergence in any section in the section congestion set enters the section congestion set；Step 2, whether increase, if so, then return to step one, otherwise turns if judging the quantity in section in the section congestion set To step 3；Step 3, judges whether the section in the section congestion set is in same path, if so, then confirming the road Congestion status distribution pattern residing for section is line congestion, and otherwise, it is face to confirm the congestion status distribution pattern residing for the section Congestion.
- 5. method as claimed in claim 4, it is characterised in that the congestion information according to the section and/or the friendship Logical accident information determines traffic control aid decision prediction scheme, including：The congestion information in the section and/or the friendship are shown by the road junction induced screen that enters of the upstream nearest apart from the section Logical accident information；Congestion status distribution pattern according to residing for the traffic behavior in the section and the section adjusts traffic lights Long green light time；The long green light time of level adjustment traffic lights is influenceed according to the traffic accident in the section.
- 6. method as claimed in claim 5, it is characterised in that the traffic behavior according to the section and the section The long green light time of residing congestion status distribution pattern adjustment traffic lights, including：The traffic behavior in the section is congestion status, and the section is in when putting congestion, in the upstream for reducing the section Roll the car in the section in the long green light time for the traffic lights for driving towards the track in the section, the downstream in the increase section away from The long green light time of the traffic lights in road；The traffic behavior in the section is congestion status, and when the section is in line congestion, determines the line residing for the section The upstream boundary section and downstream boundary section of congestion, and reduce in the upstream in the upstream boundary section and drive towards the upstream The downstream is rolled away from the long green light time of the traffic lights in the track of boundary road segments, the downstream in the increase downstream boundary section The long green light time of the traffic lights in the track of boundary road segments；The traffic behavior in the section is congestion status, and when the section is in face congestion, determines the face residing for the section All boundary road segments in congestion, for either boundary section, reduce in the upstream of the boundary road segments and drive towards the boundary road segments The long green light time of the traffic lights in track, the traffic letter for increasing the track for rolling the boundary road segments in the downstreams of the boundary road segments away from The long green light time of signal lamp.
- 7. method as claimed in claim 5, it is characterised in that described that level adjustment is influenceed according to the traffic accident in the section The long green light time of traffic lights, including：When the traffic accident influence grade in the section is middle grade traffic accident, the road will be driven towards in the upstream in the section The long green light time of the traffic lights in the track of section is reduced into the first duration, will roll the section in the downstream in the section away from The long green light time increase of the traffic lights in track is the second duration；When the traffic accident influence grade in the section is serious level traffic accident, the road will be driven towards in the upstream in the section The long green light time of the traffic lights in the track of section is reduced into the 3rd duration, will roll the section in the downstream in the section away from The long green light time increase of the traffic lights in track is the 4th duration, wherein, first duration is more than the 3rd duration, institute State the second duration and be less than the 4th duration.
- A kind of 8. traffic control aid decision device, it is characterised in that including：Acquiring unit, for obtaining road section traffic volume data；Determining unit, it is described for determining the congestion information and/or traffic accident information in section according to the road section traffic volume data Congestion information includes the traffic behavior in section, congestion status distribution pattern, and the traffic accident information influences including traffic accident Grade；Scheduling unit, influence grade for the congestion information according to the section and the traffic accident and determine that traffic control aids in Decision-making prediction scheme, or, grade is influenceed according to the traffic accident and determines traffic control aid decision prediction scheme；Wherein, the determining unit is specifically used for：The road section traffic volume data include section vehicle average speed, according to the section vehicle average speed in the section in section Vehicle average speed influences to determine the section vehicle average speed mapping in the section in grade mapping relations with traffic accident Traffic accident influences grade, and the traffic accident, which influences grade, includes slight level traffic accident, middle grade traffic accident, serious level Traffic accident.
- 9. device as claimed in claim 8, it is characterised in that the road section traffic volume data include following parameter：Section traffic occupation rate.
- 10. device as claimed in claim 9, it is characterised in that the determining unit is specifically used for：If it is determined that the section traffic occupation rate in the section is more than first threshold and is less than Second Threshold in preset time period, then The traffic behavior for determining the section is jogging state, however, it is determined that the section traffic in the section accounts in the preset time period There is rate to be more than or equal to Second Threshold, it is determined that the traffic behavior in the section is congestion status, wherein, the Second Threshold is big In the first threshold；When the traffic behavior in the section is congestion status, the section network topology structure according to residing for the section determines section Residing congestion status distribution pattern.
- 11. device as claimed in claim 10, it is characterised in that the determining unit is specifically used for：Judge whether there is the section in congestion status in the section adjacent with the section, if it is not, then confirming the section institute The congestion status distribution pattern at place is a congestion；If there is the section in congestion status in the section adjacent with the section, will be adjacent with the section and congestion be in The section of state performs following steps as section congestion set：Step 1, travel through all sections in the section network topology structure residing for the section, will be in congestion status and with The adjacent subsections mergence in any section in the section congestion set enters the section congestion set；Step 2, whether increase, if so, then return to step one, otherwise turns if judging the quantity in section in the section congestion set To step 3；Step 3, judges whether the section in the section congestion set is in same path, if so, then confirming the road Congestion status distribution pattern residing for section is line congestion, and otherwise, it is face to confirm the congestion status distribution pattern residing for the section Congestion.
- 12. device as claimed in claim 11, it is characterised in that the scheduling unit is specifically used for：The congestion information in the section and/or the friendship are shown by the road junction induced screen that enters of the upstream nearest apart from the section Logical accident information；Congestion status distribution pattern according to residing for the traffic behavior in the section and the section adjusts traffic lights Long green light time；The long green light time of level adjustment traffic lights is influenceed according to the traffic accident in the section.
- 13. device as claimed in claim 12, it is characterised in that the scheduling unit is specifically used for：The traffic behavior in the section is congestion status, and the section is in when putting congestion, in the upstream for reducing the section Roll the car in the section in the long green light time for the traffic lights for driving towards the track in the section, the downstream in the increase section away from The long green light time of the traffic lights in road；The traffic behavior in the section is congestion status, and when the section is in line congestion, determines the line residing for the section The upstream boundary section and downstream boundary section of congestion, and reduce in the upstream in the upstream boundary section and drive towards the upstream The downstream is rolled away from the long green light time of the traffic lights in the track of boundary road segments, the downstream in the increase downstream boundary section The long green light time of the traffic lights in the track of boundary road segments；The traffic behavior in the section is congestion status, and when the section is in face congestion, determines the face residing for the section All boundary road segments in congestion, for either boundary section, reduce in the upstream of the boundary road segments and drive towards the boundary road segments The long green light time of the traffic lights in track, the traffic letter for increasing the track for rolling the boundary road segments in the downstreams of the boundary road segments away from The long green light time of signal lamp.
- 14. device as claimed in claim 12, it is characterised in that the scheduling unit is specifically used for：When the traffic accident influence grade in the section is middle grade traffic accident, the road will be driven towards in the upstream in the section The long green light time of the traffic lights in the track of section is reduced into the first duration, will roll the section in the downstream in the section away from The long green light time increase of the traffic lights in track is the second duration；When the traffic accident influence grade in the section is serious level traffic accident, the road will be driven towards in the upstream in the section The long green light time of the traffic lights in the track of section is reduced into the 3rd duration, will roll the section in the downstream in the section away from The long green light time increase of the traffic lights in track is the 4th duration, wherein, first duration is more than the 3rd duration, institute State the second duration and be less than the 4th duration.
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